Clutch



Oct. 16; 1923.-

J. WHISLER CLUTCH Filed Dec. 7. 19 21 2 Sheets-Sheet 1 J. WHISLER CLUTCH Filed Dec. 7, 1921 2 Sheets-Sheet, 2

3 woe nto'a I l l/fi is [211 Patented Get. 1923. i l

To all whom dismay concern;

r g p Jenn wHIsLnn, or ernso v, Iowa. f

V CLUTCH,

Applicationfded December 7, 192 1. Serial rm 526,653."

Be it known that 1, JOHN VVHISLER, a citizen of the United States, residin at Gibson, in the county ofKeokulr' and tate of Iowa have inventedcertain newi and use ful Improvements in Clutches, ofwhich the,

following is aspecificatioin reference being had to the accompanying drawings;

g This invention relatesto certain improve-j ments in clutches and has relation more particularly to a device of this general character a of a friction type, and it'is an object of the invention to providea device of this general character embodying novel and ima given load, together with an element carried of working engagement with V one of the in- V by a driving member movableiinto and out dependently rotatable parts of the element .7 carried by the drivenmembenl- 7 arrangement of theseveral parts of myim- The inventi nconsists in the jdetails of.

construction andlginr the combination 1 and i proved clutch whereby certain 1 important advantages are attained and the device rendered simpler, less expensive and otherwise more convenient and advantageous for 7 use, as will be hereinafter more fully set forth.

Theinovel-features of my invention rvvill hereinafter be definitely claimed In order that my invention may bathe better understood I will nowproceedto Clef scribe the same with'reference to the accom- V panying drawings, wherein: '5

Figure 51 is a view part1 in section and partly in. elevation illustrating'a clutch con- ;s'tructed in accordance with agembodiment of-my invention;

11 Figure/l is a view partly in elevation show ngmyimproved Q clutch-in releasedposition; v 55 a v QFig'ureIQ is a 'v e'w' in perspective of one ofthe f-riction plates as herein disclosed; I Figure 3 is a vie'win per pective ofoneof: the fingers or pawls ca'rried by the sliding] .or movablemembergj section s and l i'gure 5 is a; sectional yievvfta'ken sub stantiallyonj the line "of Figured; and

adapted to 6 is an 'elevational'view of the p I J if "15152261 clutch as herein disclosed with the shaft and certain of the'parts omitted, y Y As disclosed, on the accompanying drawings, S denotes a line shaft or other driving rotatable member and on which is loosely" mounted a pulley-P or otherdriven member be rotatedwith the shaft Sor the Cast or otherwise fixed to" a face of the member S Overlying the plate 1 is a second annular plate 2 also surrounding the shaft pulley or driven member 1? is an annular plate 1 surrounding the shaft or driving or driving member S. The plate 2 is fixed to the plate lthrough the instrumentality of the headed'memb'ers 3 disposed through the peripheral'marginalfportion 'of the plate '2 and in threaded engagement; with the plate .1, the connectionafli'orded by the members 3 causing the plate 2 to rotate with the plate 1 and its associated pulley or member P,

As herein disclosed; the' bore. or central 7 opening 4' of thepl ate 2 is of a greater diameter than the bore or central opening 5, of the} plate 1,1 said bores or' openingsA Interposed-betvveen the plates 1 and and freeof 7 I p v p are the arcuate frictio n iplatesftieach suband 5, however, being concentrioto a cont" mon axls.

stantially semicircular in form and. 'providing relatively broad flat faces 'for trici .tional 'cdntactEwith the opposed' faces of9Q the plates 1 and 2. Y The friction plates 6,

when applied straddle the drivingrshaft or member S from opposite sides and thewidth of said plates is such as to have their inner marg nal portionstermlnate inwardly of the smaller centrallopening or bore 5; of the plate '1.

I TEach the'plates 1 and 2 for rotary movement inn "dependently of said plates 1 and 2 I in sub 'stantially fixed path oftravel and about theaxis common to both of,"theflfice'ntral Topeningsior-bores efandbr H ."The'me'mbers 3, can be readily'operatedfto ,move the plates l and2 one re1ative to the'otherinvorder to incr'easeor decrease the frictional contact between the plates" 6 and p of the plates 6, is'provided with an: outstanding arcuate flange 7 adapted for close-"contact with thef'w'all' of'th'e central a'opening or; bore t of the plat'eQwhereby i the, a'ppliedTplates -,6" are mountedg between the plates-lands 2 in accordance'with the I positive connection therewith" required tension for the load the driven pulley or-member P is adaptedto pull.

It is of decided advantage to employ vided with an .outstandinglug 8, said lug preferably having its outer face. flushwith the outer. edge ofthe 'adgazent flange and ,ofa lengthto bridge the space between said 1.1. -,fi. ?-I and theinner edge of thelplate 6. :By thisconstruc-tion of eachof the plates 6,

the lugs 8 of the plates, when the device is assembled in its entirety; are substantially diametrically opposed.

It is alsopreferred that the side taces a ofthe lugs '8 converge toward their free ,,ends'or the ends thereot remote from the flanges '7,

I 1Key ed, as at 9, ,or otherwise fixed to the '25 driving shaft or member vvS for rotation therewith is a n annular member orhead 10,

said member or-head being positioned upon the shaft or member S in close prozgimity to theouter plate Q the face of the member or head l0 opposed to the plate 2 being flat, saidouterface b;being preferably of a majordiameter substantially equal to the nieandiarneter of the field definedbyf the,

"flanges 7Q It is ailso of advantage to have ia s the member or head 1 0 gradually reduced in diameter from its inner face- 7) to its opsspQSite end; although this is not, imperative.

. I substantially diametrically] opposed points, the periphery of the casting orhead a0 710' has produced entirely thereacross and in ,a direction parallel to the anisjof the shaft or member the open-ended gfrooves or channels ll through. Which are vadapted to 'have endwise movement thefi ngers orpawls :12. aTheouter end of each of thenpawls or fingers l2 isuprovided with a reduced extension 14 for: threaded engagement within an eveningl5-produced in the outer marginal portion of the sliding membcror sleeve I1 16 mounted upon the shaft or member S.

E-mem'b'er or sleeve16 to the casting,orihead ,-;10f;whereby said sliding member or sleeve 16 {is rotated with. the shaft orv member S 5 but is permitted to have independent move,- 1 .gment in "I opposite directionsglengthwise of -=.;-ithe shaft-or member S. ,The 'movementfof the sliding member or, sleeve 16min one direction is limited-by CQIltaCt \Qf said emeastingiorihead 10. i lQhe moveinent of the 3 ember-rorslfifive 16' in the opposite directiorr1s-u11dereohtrol ot; a \headed i member I7 freely disposed through opening {18; thoughtflto be obvious that a clutch con pr0duced in the sleeve or member 16 and, struc ted inaccordance' vvithfmy invention hindrance or interference.

The pa-wls or fingers l2 key-the" shifting I wfi gpberforisleeve 'withithe adjacent trace of the p H v p S ."in accordance with 1 the;

secured to the adjacentfltace ofthe, casting or head 10.

"VVhen the slidingmember or sleeve 16 is a-t th'e-limitw of its inward movement or movement in a direction toward the casting or head 10, the outer or free end portions of the pawls or fingers 12 project beyondthe face?) of the casting or head l0 and to an extent sufiicient to project within the central opening or bore 4 of the plate 2 and in a path of travelintersectedbyithe lugs 8 of the plates 6 so that, as the shaft or member Srotates, the outer end portions of the'paw s or fingers l2 will engage the lugsB in aimannerto cause the plates 6 to rotate there with". i i

Uponinitial engagement or contact between the pawls or fingers 12 and'the lliQ'S 8 the friction plates 6 will be rotated independently oftheplates 1: and 2 softliat the resultant starting or rotation otthe pulley or driven member P a result of thet'rictional"contactbetween' the plates 1 and 2 and the plates 6 will be accomplished with ease and without jerk.

The same condition true when the member or sleeve' 16 is moved' outw'ardly in a direction to disengage the pawls or fing re rs 12 fromthe lugs and desired that the pulley o r' driv en member P'shall become. l a v Each of the grooves or channels 11 is preferably angular inj cross section with the coacting pawl 'or i'in ge r 12 of corresponding cross sectional configuration Qs o tli at said pawl or if finger lQQwilllit substantially snugly within its associated groove enchannell l l Lfl ldy this arrangement-nth; pawl ,or

finger 12 is lieldaga-inst suchr ary movement whichwould otherurise: have a tend- ,cross section "that the contactlof the pawl *or finger witha lug firesu lts in desired cooperationbetween theslidilng sleeve or member lfi and the platesfi vithou tfund ne y The slid' igr neni bei or slecve is providedy ith anfentension or hub disposed v,in a. -;di-rection away from I the casting or head-l0, andfthe pc phery of said extension I or hub 20 is provided ,vvith acii'cuinierenj tially d rected annular groove. 21 in which is adapted tobe operatively engaged in afwell known mannera shifting forli i t shown) so that "the a sliding=, ,menibe1 or sleeve l6 may be moved in ,the t sired l dir ection lengthwise .ofthe shaftoifdriyingf' lement equn ements of Eromfthe fforegjo ng description it t is is particularly well adapted for use i loy reason of the convenience and facility with which it may be assembled and operated,

' and it will alsoibe obvious that my invene 'tion is susceptible of some change and modification without departing from the principles and spirit thereof and for this reason I do not Wish to be understood as limiting myself to the precise arrangement and formation of the severalparts herein shown in carrying out my invention in'pracnecting saidplates one to the other and for moving one of said plates relative to the element, a friction plate interposed between other, said second plate being provided with 'acentralopening concentric to the driving i the first named plates, said plate freelysurrounding the driving element and provided,

Wit/11311 outstanding flange extending within the central opening of the second plate and havingclose contact withther-wallfof said opening, an outstanding lug carried byi the friction plate inwardly of the' flange 4 thereof, a head fixture on the driving element, a member slidably mounted upon the driving element and a finger extending out \vardly tromthe sliding member and having movement through the head whereby the;

r is keyed to the driving [sliding membe upon movement of p the sliding member towardthe head adapted to have Working engagement with thelug of the friction op-late 7 c 1 v In testimony'whereof I hereunto aflixmy signature. v

"JOHNWHISL'ER." 'i

v I element, the finger of thesliding member" I 

